Improvement in machines for splitting leather



UNITED STATES .PATENT OFFIcE.

HORACE WING, OF BUFFALO, NET YORK.

IMPROVEMENT IN MACHINES FOR SPLITTING LEATHER.

Specification forming part of Letters Patent No. 39,695, dated August 25, 1863.

To all whom t may concor/n:

Beit known that I, HORACE WING, of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Im provenien ts in Machines for Splittin gLeather; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompan yin g drawings, forming part of this specificat-ion, in whicl1 Figure l is a front View of a machine with my improvements. Fig.2is a plan of the same. Fig. 3 is a transverse vertical section of the same.

Similar letters of reference indicate correspondin g parts in the several figures.

This invention consists, first, in the employment, for adjusting the gage-roller at the proper distance from the plane of the edge of 4the splitting-knife, according to the thickness towhich the skin is to be reduced, of a pair of eccentrics or cams attached to the same shaft, and arranged to act, one upon each of the journal-boxes of the said roller, whereby the uniform adjustment of both ends of the said roller is insured and the difficulty of adjusting the said roller correctly by separate adjustments-such as the screws commonly employedat each end is overcome.

It also consists in making the standards or housings which contain the journal-boxes of the gage-roller adjustable to bring the said roller more or less over the edge of the splitting-knife, whereby, by obviatng the necessity of adjusting the knife, I am enabled to keep the knife better secured against springing or accidental displacement.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

A is the hedplate of the machine, having firmly screwed down to its back part the splittingknife B, which is of ordinary construction, except that the holes-provided in it for the reception of the screws a a, which securev it to the bed, are only large enough for the reception of the screws, and not elongated, as when the knife is intended to be adjustable. G is the yielding plate which supports the skin on its way under the gage-roller to the edge of the knife, attached to the front part of the bed-plate by screws b b, and made adjustable toward and from the edge of the knife.

precisely similar eccentrics or cams F F, which are situated directly over the boxes d d.

This shaft is furnished at one end with ahandwheel, J by which to enable it to be turned for the purpose of bringing the eccentrics or cams into action upon the journal-boxes, and thereby adjusting the roller at the proper distance from the edge of the knife 5 and the said shaft has also secured to'it a ratchet-wheel, H, which is engaged by the point of a springpawl, I, secured to the bed-plate for the purpose of preventing the said shaft and its cams from turning in the opposite direction to the arrow shown in Fig. 3. K K are springs secured to the bed-plate and pressing upward against the journal-boxes d d for the purpose of keeping them always in Contact with the eccentrics.

By turning the shaft G in thev direction of the arrow shown in Fig. 3 the two eccentrics are caused to press down the two journalboxes, and so depress the roller D and bring it nearer to the knife, and by turning the said shaft inthe opposite direction the eccentrics permit the springs to raise the journalboxes and the roller; and, as the two cams are both alike and set in corresponding positions on the shaft, which-is parallel with the knife, the roller, if parallel with the knife in any position, will be kept parallel therewith in all positions, both ends of the roller being always raised and lowered in an exactly corresponding degree, and the skin will be re duced to a uniform thickness by the action ot' the knife. A

The standards E E are so fitted to the ends of the bed-plate, as shown at the left-hand end of Fig. where the portions of the bedplate and one standard are shown in section, that while they are prevented from moving vertically they can be moved back and forth parallel with the face of the knife to adjust the roller more or less over the edge of the knife, and the holes -provided in the said standards for the screws c care elongated horizontally to permit such adjustment.

By thus providingI for the adjustment of the roller the necessity for adjustment of the knife is obviated, and facility is afforded for securing the knife more firmly in place than When itis made adjustable.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The employment, for adjusting the gagel roller D at a proper distance from the plane of the edge of the splitting-knife, of a pair of eccentrics or cams, F F, attached to the same shaft, and arranged to operate one upon each of the jonrnalboxes of the rollers, substantially in the manner and for the purpose herein specified.

2. Making the rstandards or housings E E, which contain the roller journal-boxes, adjustable to bring the roller more or less over the edge of the knife, substantially as and for the purpose herein specified.

` H. W ING.

Witnesses DANIEL ROBERTSON, GEO. W. REED. 

